| Adrian Guy Duplantier Sr. | |
| Office: | Senior Judge of the United States District Court for the Eastern District of Louisiana |
| Term Start: | March 6, 1994 |
| Term End: | August 15, 2007 |
| Office1: | Judge of the United States District Court for the Eastern District of Louisiana |
| Term Start1: | May 31, 1978 |
| Term End1: | March 6, 1994 |
| Appointer1: | Jimmy Carter |
| Predecessor1: | Roger Blake West |
| Successor1: | Eldon E. Fallon |
| Office2: | Judge of the New Orleans Civil District Court |
| Term Start2: | 1974 |
| Term End2: | 1978 |
| Office3: | Louisiana State Senator for Orleans Parish (later District 4) |
| Term Start3: | 1960 |
| Term End3: | 1974 |
| Predecessor3: | 8 at-large members from Orleans Parish |
| Successor3: | Sidney Barthelemy |
| Birth Name: | Adrian Guy Duplantier |
| Birth Date: | 5 March 1929 |
| Birth Place: | New Orleans, Louisiana, US |
| Death Place: | New Orleans, Louisiana, US |
| Party: | Democratic |
| Education: | Loyola University New Orleans College of Law (JD) University of Virginia School of Law (LLM) |
Adrian Guy Duplantier Sr. (March 5, 1929 – August 15, 2007) was a United States district judge of the United States District Court for the Eastern District of Louisiana. He served as a Democratic member of the Louisiana State Senate, representing a portion of Orleans Parish for four terms.
Duplantier was born in New Orleans. He graduated from the Roman Catholic Jesuit High School in 1945 and graduated from Loyola University New Orleans College of Law in 1949.
Failed bid for mayor of New Orleans in 1960, despite winning nearly all of the black vote,[1] but losing the election to Victor H. Schiro
On April 24, 1978, Duplantier was nominated by President Jimmy Carter to a seat on the United States District Court for the Eastern District of Louisiana vacated by Judge Roger Blake West. Duplantier was confirmed by the United States Senate on May 26, 1978, and received his commission on May 31, 1978. He assumed senior status on March 6, 1994, and served until his death, in New Orleans.
Duplantier and two other Louisiana Democrats, former State Treasurer Mary Evelyn Parker and former State Representative Risley C. Triche of Napoleonville in Assumption Parish, were interviewed for the 2001 book Welfare Racism: Playing the Race Card Against America's Poor. The three testified to their personal knowledge of racism in 1960–1961 in Louisiana against African American public assistance recipients.[2]